84181720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{300649}}^1$

素因数の和:300667

約数の個数: 32

約数和(自身を含む): 216468000

約数和(自身を除く): 132286280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 300649, 601298, 1202596, 1503245, 2104543, 2405192, 3006490, 4209086, 6012980, 8418172, 10522715, 12025960, 16836344, 21045430, 42090860, 84181720]

約数ペア:

[(1, 84181720), (2, 42090860), (4, 21045430), (5, 16836344), (7, 12025960), (8, 10522715), (10, 8418172), (14, 6012980), (20, 4209086), (28, 3006490), (35, 2405192), (40, 2104543), (56, 1503245), (70, 1202596), (140, 601298), (280, 300649)]